Three Formats, Same Minerals
Electrolyte products come in roughly three shapes: effervescent tablets you drop into water, powders you mix from a tub or sachet, and ready-to-drink bottles you grab off a shelf. The minerals inside are broadly the same. The difference is practical - how you carry it, mix it, and dose it.
Tablets
The classic effervescent tablet - one tablet per 500 ml of water. Nuun, Hydralyte, and SiS all sell tablets in tubes of 10.
Strengths: portable, light (a tube of 10 weighs about 60 g), easy to dose by counting tablets, and they don't make a sticky mess in a gym bag if a tube cracks. The fizz also makes them feel a bit more like a drink than plain water.
Trade-offs: harder to scale (you can't easily do "half a tablet"), sodium per tablet tends to sit in the moderate range (250-350 mg), and some people find the carbonation off-putting during heavy effort.
Powders (Tubs and Sachets)
Powders cover everything from at-home tubs (Dr.Hydrate, Endura, Staminade) to single-serve sachets (Liquid I.V., LMNT).
Strengths: highest flexibility on dose. You can scoop more or less, mix into 500 ml or 750 ml, choose flavours, and the cost-per-serve from a tub is usually the lowest of the three formats. Sachet variants give you portability without the bulk of a tub.
Trade-offs: you need a measuring scoop, the powder can clump in humidity, and bigger tubs are bulky for travel.
Ready-to-Drinks
RTDs are the supermarket classic - Gatorade and Powerade are the obvious examples in Australia. Sometimes Hydralyte's RTD bottles sit nearby in pharmacy.
Strengths: zero prep, available at every service station, and the carbohydrate-electrolyte ratio is consistent with decades of sports-drink research. Useful as a between-sessions or post-match drink.
Trade-offs: heavy to carry, more packaging waste, and typically higher in sugar than sugar-free powders or tablets (unless you grab the sugar-free SKU).
Picking a Format
For most people, format is the determining factor - not the brand or the exact mineral profile. If you're packing for a race, tablets win on bulk. If you're hydrating at the desk, a tub is cheapest. If you're walking past a 7-Eleven on the way home from training, an RTD is the path of least resistance.
See our full Electrolytes category for more on this.
Frequently Asked
Are tablets as effective as powders?
For mineral delivery, yes. The same brands often offer both formats with comparable per-serve electrolyte content. The difference is dosing flexibility (powders) vs precision and portability (tablets).
Which format is cheapest per serve?
Tubs of powder generally win on cost-per-serve. A 30-serve tub at supermarket pricing often comes out around $0.50-$1.50 per serve. Single-serve sachets run 2-4x more per serve; tablets sit in between.
Do RTD sports drinks expire?
Like any beverage, yes - check the use-by date on the bottle. Unopened bottles store fine at room temperature; once opened, fridge them and consume within 24 hours.
Can I mix powder into something other than water?
Most powders dissolve fine in cold water, sparkling water, or even watered-down juice. Mixing with milk or carbonated alcohol-containing drinks isn't usually recommended for taste reasons. Check the brand's directions for any specific guidance.
